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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2020 Nordix Foundation
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.plugins.etsi.nfv.nsd.tosca.yaml;
import org.openecomp.sdc.be.tosca.model.ToscaTemplate;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.DumperOptions.FlowStyle;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.representer.Representer;
/**
* Handles a Tosca Template YAML parsing
*/
@Component
@Scope(BeanDefinition.SCOPE_PROTOTYPE)
public class ToscaTemplateYamlGenerator {
private final ToscaTemplate toscaTemplate;
private final Representer representer;
private final DumperOptions dumperOptions;
public ToscaTemplateYamlGenerator(final ToscaTemplate toscaTemplate) {
this.toscaTemplate = toscaTemplate;
this.representer = new NsdTemplateRepresenter();
initRepresenter();
this.dumperOptions = new DumperOptions();
initDumperOptions();
}
/**
* Parses the ToscaTemplate to a String YAML.
*
* @return the YAML representing the ToscaTemplate
*/
public String parseToYamlString() {
final Yaml yaml = new Yaml(representer, dumperOptions);
return yaml.dumpAsMap(toscaTemplate);
}
private void initDumperOptions() {
dumperOptions.setAllowReadOnlyProperties(false);
dumperOptions.setPrettyFlow(true);
dumperOptions.setDefaultFlowStyle(FlowStyle.FLOW);
dumperOptions.setCanonical(false);
}
private void initRepresenter() {
representer.addClassTag(toscaTemplate.getClass(), Tag.MAP);
representer.setPropertyUtils(new UnsortedPropertyUtils());
}
}
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